Fig. 1. Equivalent diagram of large aperture static interference imaging spectrometer (LASIS) imaging principle

Fig. 2. Imaging process of LASIS on the detector

Fig. 3. Simulation feature information

Fig. 4. Simulation of laser jamming information

Fig. 5. Simulation imaging results

Fig. 6. Comparison of restored spectrum and original spectrum when there is no laser jamming

Fig. 7. Normalized intensity distribution of restored spectrum under different intensity of 830 nm laser jamming

Fig. 8. Incident spectrum after the filter

Fig. 9. Comparison of the restored spectrum and the original spectrum after adding the filter

Fig. 10. Normalized intensity distribution of restored spectrum under different intensity of supercontinuous laser jamming

Fig. 11. Recovery results under different laser jamming intensity after setting the saturation threshold

Fig. 12. Relationship between spectral angle and laser jamming

Fig. 13. Interferograms after reaching the saturation threshold

Fig. 14. Variation of spectral angle with the ratio of interference peak intensity under unsaturated condition